protected virtual void AddReturn(PDFUnit widthOfLastTextDraw, bool hardReturn)
{
this.AssertCurrentLine();
PDFLayoutLine line = this.CurrentLine;
PDFTextRunNewLine br = new PDFTextRunNewLine(false, line, this.TextRenderOptions, this.TextComponent);
line.AddRun(br);
//The offset is from the start of the last text drawing operation
//and the offset of the start of the current line
PDFUnit lineright = widthOfLastTextDraw;
PDFUnit back = line.Width - lineright;
//Previous - 27 Feb 2015
//br.Offset = new PDFSize(back, line.Height);
//Updated
if (line.BaseLineOffset == 0 || this.TextRenderOptions.Leading.HasValue) //we don't have any begins or ends affecting the flow (or an explicit leading)
{
br.Offset = new PDFSize(back, line.Height);
}
else
{
br.Offset = new PDFSize(back, (line.Height - line.BaseLineOffset) + this.TextRenderOptions.GetAscent());
}
PDFLayoutRegion reg = line.Region;
reg.CloseCurrentItem();
line = reg.BeginNewLine();
this.BeginningRun.Lines.Add(line);
PDFUnit inset;
if (hardReturn)
{
inset = this.TextRenderOptions.GetFirstLineInset();
}
else
{
inset = PDFUnit.Zero;
}
PDFTextRunSpacer spacer = this.AddLineInsetRun(inset, 0, line);
br.NextLineSpacer = spacer;
this.CurrentLine = line;
this.CurrentLineInset = inset;
}
protected virtual PDFLayoutBlock CreateContinerBlock(PDFPositionOptions position)
{
bool newPage = false;
PDFLayoutBlock containerBlock = this.DocumentLayout.CurrentPage.LastOpenBlock();
PDFLayoutRegion containerRegion = containerBlock.CurrentRegion;
if (containerRegion.HasOpenItem)
{
containerRegion.CloseCurrentItem();
}
PDFUnit required = PDFUnit.Zero;
if (position.Height.HasValue)
{
required = position.Height.Value;
}
//ADDED for min/max sizes.
else if (position.MinimumHeight.HasValue)
{
required = position.MinimumHeight.Value;
}
//Do we have space
if (containerRegion.AvailableHeight <= 0 || (containerRegion.AvailableHeight < required))
{
if (this.MoveToNextRegion(required, ref containerRegion, ref containerBlock, out newPage) == false)
{
this.Context.TraceLog.Add(TraceLevel.Warning, LOG_CATEGORY, "Cannot fit the block for component " + this.Component.UniqueID + " in the avilable height (required = '" + position.Height + "', available = '" + containerRegion.AvailableHeight + "'), and we cannot overflow to a new region. Layout of component stopped and returning.");
this.ContinueLayout = false;
return(null);
}
}
CurrentBlock = containerBlock.BeginNewContainerBlock(this.Component, this, this.FullStyle, position.PositionMode);
CurrentBlock.BlockRepeatIndex = 0;
return(containerBlock);
}
